User's Manual Part 2

Chapter 6 Maintenance
6.5.4.2 LBE Installation
Any RF cable, which is terminated with a SMA connector, should be
tightened with a 5/16” torque wrench to avoid over tightening and
damaging the cable connector or mating connector.
The replacement LBE should be installed in the following sequence:
1. Slide the replacement LBE onto the mounting brackets in the electronics compartment
above the HBE – see Figure 6-5
.
2. Replace the two (2) Phillips pan head screws which secure the LBE to the mounting
brackets – see Figure 6-4
.
3. Re-connect the wires/cables to the LBE rear panel in the order that they appear in
Table 6-4
.
4. Switch ON the LBE rear panel power switch.
5. Switch ON the LBE 25A circuit breaker, located on the BMS front panel.
6. Switch ON the HPA-L 5A circuit breaker, located on the BMS front panel.
7. Switch ON the LB HPA PSU circuit breaker (CB2), located on the PDU.
8. Please refer to SiriusXM instructions as well as the LBE Operating Manual to configure
the LBE with specific settings for its assigned location.
9. Using the LBE GUI, place the LB sub-system in transmit_only mode.
10. Close the electronics compartment front and rear doors.
Figure 6-5 LBE Mounting Brackets
1) LBE Mounting Bracket (left side)
2) LBE Mounting Bracket (right side)
3) Mounting Screw Hole
SX03-10000-01-M01 6-11